Pin Assignments
E = Input, A = Output, M = GroundPin ConnectionDescription/Function Type
84
Not used
85Not used
86Not used
87EBattery voltage, terminal 87Engine control module relay
88E/ATxD diagnosis data linkData link connector
Pin Assignments
E = Input, A = Output, M = Ground
X8500
Pin Type Description/Function Connection
10
Not used
11MGroundShift-lock
12Not used
13ASolenoid valve 3 control (–)Transmission valve unit
14AHydraulic pressure regulator control (–)Transmission valve unit
15Not used
16Not used
17EGear range signal L2Automatic transmission range switch
18EGear range signal L4Automatic transmission range switch
19EBrake pedal positionBrake light switch
20Not used
21Not used
22EManual mode signalProgram switch
23EOutput speed (–)Transmission valve unit
24MGround for shieldShield for speed sensor
25Not used
26Not used
27EKick-down signalKick-down switch
28Not used
29EAutomatic mode signalProgram switch
30EOil temperature signal (–)Transmission valve unit
31EOil temperature signal (+)Transmission valve unit
32Not used
33Not used
34Not used
35EBattery voltageB+ junction point E-box
36AM-program indicationProgram switch
37MGroundGround point
38Not used
39ASolenoid valve 1 control (–)Transmission valve unit
Pin Assignments
E = Input, A = Output, M = Ground
X17
Pin Type Description/Function Connection
1
ETrailer turn signal indicator controlHazard flasher relay (Z3 Versions)
2AVehicle speed signalVarious control modules
3MGround supply, terminal 31 for indicator and
warning lampsGround point
4EVoltage supply, terminal 15 for instrument
cluster electronicsFront power distribution box, fuse 23
5EVoltage supply, terminal 15 for battery
charge indicatorIgnition switch, terminal 15 (M Versions)
6EGround supply, terminal 61 for battery
charge indicatorGenerator
7Not used
8EFog light indicator controlFront power distribution box, fuse 15
(Z3 Versions)
9ASound tone signalChime module
10not used
11ESlip control system warning lamp (ABS)
controlSlip control module (ABS/ASC)
(M Versions)
12EASC signalASC control module (M Versions)
13ATI-measurement signal (fuel consumption)Engine control module (DME) (M Versions)
14ESeat belt warning lamp controlDriver’s seat belt switch
15ESIA reset/service interval indicator resetData link connector
16EVoltage supply, terminal RFront power distribution box, fuse 46
17ACoolant temperature sensor (–)Coolant temperature sensor (M Versions)
18ECoolant temperature sensor (+)Coolant temperature sensor (M Versions)
19EOil pressure warning lamp controlOil pressure switch (M Versions)
Engine control module (Z3 Versions)
20Not used
21MGround (ASC)Ground point (M Versions)
21EABS warning lamp (ABS)Slip control module (ABS/ASC)
(Z3 Versions)
22EIgnition key warning/audible ignition key
warningIgnition switch